Pipe fitting



FIG. 1 is a top perspective view of a pipe fitting;

FIG. 2 is a bottom perspective view;

FIG. 3 is an end view;

FIG. 4 is a top view;

FIG. 5 is a top view;

FIG. 6 is an end view;

FIG. 7 is a right side view; and,

FIG. 8 is a left side view. 

CLAIM The ornamental design for a pipe fitting, as shown and described. 